Developmental prototypes typically wear some sort of camouflaging in order to hide their shapes from prying eyes, but for the 918 Spyder, Porsche has taken a different track with black-and-white racing liveries. The last time we saw the 918 testing at the Nurburgring
, it was wearing a greyscale Martini Racing livery. This time the German automaker has decked it out in the psychedelic "Hippie" livery inspired by the original 917 racer in 1970. But that's not all that's intriguing about this particular batch of spy shots.